为了定量分析水肥一体化技术和全生物降解膜覆膜技术对马铃薯干物质积累、分配及转运的影响，本研究以马铃薯品种‘荷兰15 号’为材料，通过田间试验，分析水肥一体化技术和全生物降解膜覆膜技术对马铃薯干物质积累动态、分配动态、转运动态、根冠比的影响以及不同器官对块茎贡献率的差异。结果表明：全生物降解膜覆膜对马铃薯淀粉积累期以后干物质积累具有促进作用；水肥一体化可以提高马铃薯苗期根冠比，利于形成壮苗；水肥一体化处理(WF1)和全生物降解膜覆膜处理(PF1)的营养器官同化物输入块茎量显著高于常规水肥处理(WF2)和普通膜覆膜处理(PF2)，WF1 PF1 处理营养器官同化物输入块茎量最大。说明水肥一体化技术和全生物降解膜覆膜技术对马铃薯块茎产量形成具有促进作用。
Abstract
To quantitatively analyze the effect of integrated management of irrigation and fertilizers and biodegradable plastic mulch film on accumulation, distribution and transport of dry matter in potato, field experiments were carried out in 2015. The‘Helan 15’(early maturing) potato variety was adopted as experimental material in the study. The effect of integrated management of irrigation and fertilizer and biodegradable plastic mulch film on accumulation, distribution, transport, root-shoot ratio of dry matter, and
the contribute rate of different organs to tubers in potato were confirmed. The results showed that: biodegradable plastic mulch film had a promotion effect on dry matter accumulation after starch accumulation stage in potato; integrated management of irrigation and fertilizer could increase the root-shoot ratio in seedling stage of potato, and promote the breeding of healthy seedling; the assimilation quantity from nutritional organs to tubers under the treatments of integrated management of irrigation and fertilizer and biodegradable plastic mulch film were higher than that under the treatments of the conventional water and fertilizer management and plain film, and the assimilation quantity from nutritional organs to tubers in the treatment of WF1 PF1 was the maximum. It indicated that integrated management of irrigation and fertilizer and biodegradable plastic mulch film play a role in promoting the yield of potato tubers.
关键词
水肥一体化;全生物降解膜;马铃薯;干物质
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Key words
integrated management of irrigation and fertilizer; biodegradable plastic mulch film; potato; dry matter
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